| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.92 | 4.16 | -0.24 |
| Feb | 3.51 | 3.61 | -0.10 |
| Mar | 4.94 | 5.26 | -0.32 |
| Apr | 4.35 | 4.60 | -0.25 |
| May | 3.44 | 3.45 | -0.01 |
| Jun | 3.74 | 3.94 | -0.20 |
| Jul | 3.19 | 3.24 | -0.05 |
| Aug | 3.61 | 3.74 | -0.13 |
| Sep | 3.93 | 3.94 | -0.01 |
| Oct | 4.49 | 4.72 | -0.23 |
| Nov | 4.17 | 4.24 | -0.07 |
| Dec | 4.72 | 5.02 | -0.30 |
48.01 | 49.92 | -1.91 |